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bcopy(3)
NAME
bcopy, bcmp, bzero - Perform memory operations
SYNOPSIS
#include <strings.h>
void bcopy(
const void *source,
void *destination,
size_t length );
int bcmp(
const void *string1,
const void *string2,
size_t length );
void bzero(
void *string,
size_t length );
The following function definitions do not conform to current standards and
are supported only for backward compatibility:
#include <string.h>
void bcopy(
const char *source,
char *destination,
int length );
int bcmp(
const char *string1,
const char *string2,
int length );
void bzero(
char *string,
int length );
LIBRARY
Standard C Library (libc)
STANDARDS
Interfaces documented on this reference page conform to industry standards
as follows:
bcopy(), bcmp(), bzero(): XSH5.0
Refer to the standards(5) reference page for more information about
industry standards and associated tags.
PARAMETERS
source
Points to the original string for the bcopy() function.
destination
Points to the destination string for the bcopy() function.
string1
Specifies the byte string to be compared to the string2 parameter by
the bcmp() function.
string2
Specifies the byte string to be compared to the string1 parameter by
the bcmp() function.
length
Specifies the length (in bytes) of the string.
DESCRIPTION
The bcopy(), bcmp(), and bzero() functions operate on variable length
strings of bytes. Unlike the string functions, they do not check for null
bytes.
The bcopy() function copies the value of the length parameter in bytes from
the string in the source parameter to the string in the destination
parameter.
The bcmp() function compares the byte string in the string1 parameter
against the byte string of the string2 parameter, returning a 0 (zero)
value if the two strings are identical and a nonzero value otherwise.
The bzero() function nulls the string in the string parameter, for the
value of the length parameter in bytes.
NOTES
[Tru64 UNIX] The bcopy() function is similar to the memcpy() function
except that the first two parameters are reversed.
SEE ALSO
Functions: memccpy(3), memcpy(3), string(3), swab(3)
Standards: standards(5)
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